hipblasdspr2stridedbatched Interface Reference

• hipfort_hipblas
• hipblasdspr2stridedbatched

Public Member Functions | List of all members

hipfort_hipblas::hipblasdspr2stridedbatched Interface Reference

BLAS Level 2 API. More...

Public Member Functions
integer(kind(hipblas_status_success)) function	hipblasdspr2stridedbatched_ (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount)
integer(kind(hipblas_status_success)) function	hipblasdspr2stridedbatched_rank_0 (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount)
integer(kind(hipblas_status_success)) function	hipblasdspr2stridedbatched_rank_1 (handle, uplo, n, alpha, x, incx, stridex, y, incy, stridey, AP, strideAP, batchCount)

Detailed Description

BLAS Level 2 API.

spr2StridedBatched performs the matrix-vector operation

A_i := A_i + alpha*x_i*y_i**T + alpha*y_i*x_i**T

where alpha is a scalar, x_i amd y_i are vectors, and A_i is an n by n symmetric matrix, supplied in packed form, for i = 1, ..., batchCount.

Parameters

[in]	handle	[hipblasHandle_t] handle to the hipblas library context queue.
[in]	uplo	[hipblasFillMode_t] specifies whether the upper 'HIPBLAS_FILL_MODE_UPPER' or lower 'HIPBLAS_FILL_MODE_LOWER' HIPBLAS_FILL_MODE_UPPER: The upper triangular part of each A_i is supplied in AP. HIPBLAS_FILL_MODE_LOWER: The lower triangular part of each A_i is supplied in AP.
[in]	n	[int] the number of rows and columns of each matrix A_i, must be at least 0.
[in]	alpha	device pointer or host pointer to scalar alpha.
[in]	x	device pointer pointing to the first vector (x_1).
[in]	incx	[int] specifies the increment for the elements of each x_i.
[in]	stridex	[hipblasStride] stride from the start of one vector (x_i) and the next one (x_i+1).
[in]	y	device pointer pointing to the first vector (y_1).
[in]	incy	[int] specifies the increment for the elements of each y_i.
[in]	stridey	[hipblasStride] stride from the start of one vector (y_i) and the next one (y_i+1).
[in,out]	AP	device pointer storing the packed version of the specified triangular portion of each symmetric matrix A_i. Points to the first A_1. if uplo == HIPBLAS_FILL_MODE_UPPER: The upper triangular portion of each symmetric matrix A_i is supplied. The matrix is compacted so that AP contains the triangular portion column-by-column so that: AP(0) = A(0,0) AP(1) = A(0,1) AP(2) = A(1,1), etc. Ex: (HIPBLAS_FILL_MODE_UPPER; n = 4) 1 2 4 7 2 3 5 8 --—> [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] 4 5 6 9 7 8 9 0 if uplo == HIPBLAS_FILL_MODE_LOWER: The lower triangular portion of each symmetric matrix A_i is supplied. The matrix is compacted so that AP contains the triangular portion column-by-column so that: AP(0) = A(0,0) AP(1) = A(1,0) AP(n) = A(2,1), etc. Ex: (HIPBLAS_FILL_MODE_LOWER; n = 4) 1 2 3 4 2 5 6 7 --—> [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] 3 6 8 9 4 7 9 0
[in]	strideA	[hipblasStride] stride from the start of one (A_i) and the next (A_i+1)
[in]	batchCount	[int] number of instances in the batch.

Member Function/Subroutine Documentation

◆ hipblasdspr2stridedbatched_()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_	(	type(c_ptr), value	handle,
		integer(kind(hipblas_fill_mode_upper)), value	uplo,
		integer(c_int), value	n,
		real(c_double)	alpha,
		type(c_ptr), value	x,
		integer(c_int), value	incx,
		integer(c_int64_t), value	stridex,
		type(c_ptr), value	y,
		integer(c_int), value	incy,
		integer(c_int64_t), value	stridey,
		type(c_ptr), value	AP,
		integer(c_int64_t), value	strideAP,
		integer(c_int), value	batchCount
	)

◆ hipblasdspr2stridedbatched_rank_0()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_rank_0	(	type(c_ptr)	handle,
		integer(kind(hipblas_fill_mode_upper))	uplo,
		integer(c_int)	n,
		real(c_double)	alpha,
		real(c_double), target	x,
		integer(c_int)	incx,
		integer(c_int64_t)	stridex,
		real(c_double), target	y,
		integer(c_int)	incy,
		integer(c_int64_t)	stridey,
		type(c_ptr)	AP,
		integer(c_int64_t)	strideAP,
		integer(c_int)	batchCount
	)

◆ hipblasdspr2stridedbatched_rank_1()

integer(kind(hipblas_status_success)) function hipfort_hipblas::hipblasdspr2stridedbatched::hipblasdspr2stridedbatched_rank_1	(	type(c_ptr)	handle,
		integer(kind(hipblas_fill_mode_upper))	uplo,
		integer(c_int)	n,
		real(c_double)	alpha,
		real(c_double), dimension(:), target	x,
		integer(c_int)	incx,
		integer(c_int64_t)	stridex,
		real(c_double), dimension(:), target	y,
		integer(c_int)	incy,
		integer(c_int64_t)	stridey,
		type(c_ptr)	AP,
		integer(c_int64_t)	strideAP,
		integer(c_int)	batchCount
	)

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The documentation for this interface was generated from the following file:

• hipfort_hipblas.f